White Industries Campy N3W EKAR TI Cassette Driver Body
The titanium N3W driver body for White Industries rear hubs. N3W is the interface Campagnolo introduced with Ekar, their 13-speed gravel groupset, and it exists for the same reason Micro Spline and XD do: to clear the way for a very small top sprocket and the wide gear range a one-by gravel drivetrain is built around.
Design and construction
N3W is the smallest-diameter of the interfaces White Industries make a body for, which concentrates the drive load onto less material than any of the others. Titanium is doing real work here rather than saving a few grams - it keeps a small spline sharp under the high torque that a 13-speed gravel range puts through the bottom of the cassette.
Doug White started the company in 1978 and it still machines everything in Petaluma, California, in its own shop. Nothing here is a bought-in blank with a logo on it - the part goes from bar stock to finished component under one roof, which is why spares for things White Industries sold years ago are usually still available.
Fit and compatibility
White Industries list it as driver type Campy N3W EKAR, part DRIVER15TN, about 85g. It is the correct body for Ekar and for Campagnolo's other N3W-interface cassettes. It is not interchangeable with the 9-12 speed Campagnolo body.
Buying it from ProWheelBuilder
ProWheelBuilder is an independent wheel builder in Georgia. White Industries designs and manufactures this part; we stock it, we fit it to the wheels we build, and we are happy to talk through whether it is the right one before you buy.
Warranty
Manufacturer's warranty. White Industries warrants this product against defects in materials and workmanship. The duration, conditions and claim process are set by White Industries and can change without notice, so ask us and we will confirm the current terms before you buy.
ProWheelBuilder. Tools and accessories sit outside ProWheelBuilder's one-year wheel warranty, which applies to the wheels we lace. Cover for this item is the manufacturer's.
Full terms are on our Policies & Warranty page.
Campagnolo N3W Ekar TI cassette driver body questions
Is N3W the same as Campagnolo's older cassette fitting?
No. N3W is a newer, smaller interface introduced with Ekar. A 9-12 speed Campagnolo cassette and an Ekar cassette need different driver bodies.
I'm building a gravel wheel around a White Industries hub - is this the one?
If the drivetrain is Ekar, yes. If it is Shimano GRX or SRAM, you want the HG or XD/XDR body instead. Tell us the groupset when you order the build and we will fit the right one.
Will this fit my White Industries hub?
It fits the White Industries rear hubs built around their 15mm driver interface, which covers the current freehub-equipped models. If you are unsure which driver your hub already has, send us the hub and we will tell you, or text us and describe it.
Can I change driver standards later?
That is the point of a replaceable driver body. Changing drivetrain brand or speed count does not mean a new hub - it means a new driver body, which is a workshop job of minutes rather than a rebuild.
Is ProWheelBuilder the manufacturer of the White Industries Campy N3W EKAR TI Cassette Driver Body?
No. White Industries designs and manufactures it in Petaluma, California. ProWheelBuilder is an independent wheel builder in Georgia that stocks the part and fits it to the wheels we build.
Not sure? Text or leave a voicemail on 470-253-0929 or email info@prowheelbuilder.com — you will be talking to the people who build the wheels.
